Issued Patents 2004
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6825743 | Substrate enhancement for improved signal characteristics on a discontinuous transmission line | Raymond C. Rumpf, Randy T. Pike | 2004-11-30 |
| 6812906 | Broadband quardifilar helix with high peak gain on the horizon | Mark Lawrence Goldstein, Richard J. Nink | 2004-11-02 |
| 6806843 | Antenna system with active spatial filtering surface | Heriberto Delgado | 2004-10-19 |
| 6794952 | High efficiency low pass filter | Randy T. Pike | 2004-09-21 |
| 6791496 | High efficiency slot fed microstrip antenna having an improved stub | Randy T. Pike, Heriberto Delgado | 2004-09-14 |
| 6781486 | High efficiency stepped impedance filter | Randy T. Pike | 2004-08-24 |
| 6753744 | High efficiency three port circuit | Randy T. Pike | 2004-06-22 |
| 6753814 | Dipole arrangements using dielectric substrates of meta-materials | Randy T. Pike | 2004-06-22 |
| 6753745 | High efficiency four port circuit | Randy T. Pike | 2004-06-22 |
| 6750820 | High efficiency antennas of reduced size on dielectric substrate | Randy T. Pike | 2004-06-15 |
| 6750740 | High efficiency interdigital filters | Randy T. Pike | 2004-06-15 |
| 6741148 | High efficiency coupled line filters | Randy T. Pike | 2004-05-25 |
| 6737932 | Broadband impedance transformers | Randy T. Pike | 2004-05-18 |
| 6734827 | High efficiency printed circuit LPDA | Randy T. Pike | 2004-05-11 |
| 6731248 | High efficiency printed circuit array of log-periodic dipole arrays | Randy T. Pike | 2004-05-04 |
| 6731246 | Efficient loop antenna of reduced diameter | Francis Eugene Parsche, Randy T. Pike | 2004-05-04 |
| 6731244 | High efficiency directional coupler | Randy T. Pike | 2004-05-04 |
| 6727785 | High efficiency single port resonant line | Randy T. Pike | 2004-04-27 |
| 6720926 | System for improved matching and broadband performance of microwave antennas | Randy T. Pike | 2004-04-13 |
| 6700463 | Transmission line structure for reduced coupling of signals between circuit elements on a circuit board | Randy T. Pike | 2004-03-02 |